9. What are pollutants? Give two examples.
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6
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These are those which are emitted directly from the source and persist in the form in which they were added to the environment. Typical examples of pollutants included under this category are ash, smoke, fumes, dust, nitric oxide, sulphur dioxide, hydrocarbons etc.
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3
Answer:
it is harmful gas that harm to our body and damage our lungs.and cause disese
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